<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref } from 'vue';

const isRegister = ref(false)

const registerUser = ref({
    username: '',
    password: '',
    rePassword: ''
})

const checkRePassword = (rule, value, callback) => {
    if (value === '') {
        callback(new Error('请再次确认密码'))
    } else if (value !== registerUser.value.password) {
        callback(new Error('请确保两次输入的密码一致'))
    } else {
        callback()
    }
}

//定义表单校验规则
//required, :rules='rules',
const rules = {
    username: [
        { required: true, message: '请输入用户名', trigger: 'blur' },
        { min: 3, max: 10, message: '长度为5~16位非空字符', trigger: 'blur' }
    ],
    password: [
        { required: true, message: '请输入用户名', trigger: 'blur' },
        { min: 5, max: 16, message: '长度为5~16位非空字符', trigger: 'blur' }
    ],
    rePassword: [
        { validator: checkRePassword, trigger: 'blur' }
    ]
}


import { registerService,loginService } from '@/api/user';
import { ElMessage } from 'element-plus';
import { useRouter } from 'vue-router';
const router = useRouter();

//注册
const register = async () => {
    let result = await registerService(registerUser.value);
    ElMessage.success(result.data.message ? result.data.message : '注册成功');
    isRegister.value=false;
    registerUser.value.username = '',
    registerUser.value.password = ''
}

import { useTokenStore } from '@/stores/token';
const tokenStore = useTokenStore();
//登录
const login = async()=>{
    let result = await loginService(registerUser.value);
    //存token到pinia
    tokenStore.setToken(result.data);
    
    ElMessage.success(result.data.message ? result.data.message : '登录成功')
    router.push('/');//首页
}

//清空登录数据
const clear = ()=>{
    registerUser.value.username = ''
    registerUser.value.password = ''
    registerUser.value.rePassword = ''
}
</script>

<template>
    <el-row class="login-page">
        <el-col :span="6" :offset="3" class="form">
            <!-- 注册表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-if="isRegister" :model="registerUser" :rules="rules">
                <el-form-item>
                    <h1>注册</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerUser.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码"
                        v-model="registerUser.password"></el-input>
                </el-form-item>
                <el-form-item prop="rePassword">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入再次密码"
                        v-model="registerUser.rePassword"></el-input>
                </el-form-item>
                <!-- 注册按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="register">
                        注册
                    </el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = false;clear()">
                        ← 返回
                    </el-link>
                </el-form-item>
            </el-form>
            <!-- 登录表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-else :model="registerUser" :rules="rules">
                <el-form-item>
                    <h1>登录</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerUser.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码"
                        v-model="registerUser.password"></el-input>
                </el-form-item>
                <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>记住我</el-checkbox>
                        <el-link type="primary" :underline="false">忘记密码？</el-link>
                    </div>
                </el-form-item>
                <!-- 登录按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="login">登录</el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = true;clear()">
                        注册 →
                    </el-link>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>

<style lang="scss" scoped>
.login-page {
    height: 100vh;
    background-color: #fff;
    background-image: url(https://moedog.org/wp-content/themes/Kratos-alpha/static/images/index_image.png);
    background-size: cover;
    background-attachment: fixed;


    .form {
        margin-left: 600px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        user-select: none;


        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }

        .flex {
            width: 100%;
            display: flex;
            justify-content: space-between;
        }
    }
}
</style>